Indoor Unit Outdoor Unit CS-RE9NKE CS-RE12NKE CS-RE15NKE ...

TABLE OF CONTENTS 

1. Safety Precautions.............................................3 

2. Specification .......................................................5 

3. Features ..............................................................9 

4. Location of Controls and Components..........10 

4.1 Indoor Unit..................................................10 

4.2 Outdoor Unit ...............................................10 

4.3 Remote Control ..........................................10 

5. Dimensions .......................................................11 



6. Refrigeration Cycle Diagram...........................13 

7. Block Diagram ..................................................14 

8. Wiring Diagram.................................................16 

9. Printed Circuit Board .......................................19 

WARNING 

Order No: PAPAGZ120301CE 

Indoor Unit Outdoor Unit 

CS-RE9NKE 



CU-RE9NKE 



This service information is designed for experienced repair technicians only and is not designed for use by the general public. 

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. 

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service 

or repair the products dealt with in this service information by anyone else could result in serious injury or death. 



10. Installation Instruction.....................................24 

10.1 Select the Best Location ............................24 



11. Service Mode ....................................................30 

11.1 Auto OFF/ON Button ..................................30 

11.2 Select Remote Control Transmission Code 

………………………………………………...30 

11.3 Operate and Display of Remote Control ....31 

12. Operation Control.............................................33 

12.1 Basic Function............................................33 

12.2 Indoor Fan Motor Operation.......................34 

12.3 Outdoor Fan Motor Operation ....................34 

13. Protection control ............................................37 

13.1 Protection Control For All Operations ........37 

© Panasonic Appliances Air-Conditioning 

(Guangzhou) Co.,Ltd (PAPAGZ) 2012. Unauthorized 

copying and distribution is a violation of law.

13.2 Protection Control For Cooling and Soft Dry 

Operation...............................................................39 

13.3 Indoor Piping Air Temperature Control 

(Heating)................................................................40 

14. Troubleshooting Guide....................................42 

14.1 Refrigeration cycle system .........................42 

14.2 Breakdown Self Diagnosis Function...........43 

15. Disassembly and Assembly Instructions ......45 

16. Exploded View and Replacement Pars List...48 

16.1 Indoor Unit ..................................................48 


2

1. Safety Precautions 

• Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing. 

• Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the 

power plug and main circuit for the model installed. 

• The caution items stated here must be followed because these important contents are related to safety. The 

meaning of each indication used is as below. Incorrect installation or servicing due to ignoring of the instruction 

will cause harm or damage, and the seriousness is classified by the following indications. 

WARNING This indication shows the possibility of causing death or serious injury 

CAUTION 

This indication shows the possibility of causing injury or damage to properties. 

• The items to be followed are classified by the symbols: 

Symbol with white background denotes item that is PROHIBITED from doing. 

Symbol with dark background denotes item that must be carried out. 

• Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to user the operation, 

care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for 

future reference. 

WARNING 

1. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, 

electrical shock or fire. 

2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical 

shock or fire. 

3. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water 

leakage, fire or electrical shock. 

4. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation 

is not properly done, the set will drop and cause injury. 

5. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building, 

child may climb up to outdoor unit and cross over the handrail and causing accident. 

6. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent 

circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will 

cause electrical shock or fire. 

7. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual Current 

Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation 

breakdown. 

8. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning 

rod and telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown. 

9. Do not use joint cable for indoor/outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to 

installation instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor 

connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not 

perfect, it will cause heat up or fire at the connection. 

10. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed 

perfectly, it will cause fire or electrical shock. 

11. When carrying out piping connection, take care not to let air substances other than the specified refrigerant go into 

refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion 

and injury. 

12. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single 

outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire. 

13. • For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such 

same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and 

injury. Use only R410A materials. 

• Thickness or copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm 

• It is desirable that the amount of residual oil is less than 40 mg/10 m. 

14. During installation, install the refrigerant piping properly before running the compressor. Operation of compressor 

without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in 

refrigeration cycle and result in explosion, injury etc. 

15. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration 

piping while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in 

refrigeration cycle and result in explosion, injury etc. 

3

16. After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic gas 

when the refrigerant contacts with fire. 

17. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with 

fire. 

18. Recommended installation height for indoor unit shall be at least 2.5 m. 

19. The appliance shall be installed in accordance with national wiring regulations. 

20. Keep away from small children, the thin film may cling to nose and mouth and prevent breathing. 

21. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long 

period, the flare may break and cause refrigerant gas leakage. 

22. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury. 

23. Do not modify the machine, part, material during repairing service. 

24. Must not use other parts except original parts describe in catalog and manual. 

25. Do not tie up the power supply cord into a bundle by hand. Abnormal temperature rise on power supply cord may 

happen. 

26. Do not sit or step on the unit, you may fall down accidentally. 

27. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and 

prevent breathing. 

28. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. 

air etc. mix into refrigeration cycle (piping). Mixing of air etc. will cause abnormal high pressure in 

refrigeration cycle and result in explosio. 

29. Indoor unit must be installed close against the wall. 

30.All-pole disconnection incorporated in the fixed wiring is to be provided. 

CAUTION 

1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at 

surrounding of the unit, it may cause fire. 

2. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room 

and damage the furniture. 

3. Do not touch outdoor unit air inlet and aluminums fin. It may cause injury. 

4. Select an installation location which is easy for maintenance. 

5. Power supply connection to the air conditioner. 

Connect the power supply cord of the air conditioner to the mains using one of the following methods. 

Power supply point should be in easily accessible place for power disconnection in case of emergency. 

In some countries, permanent connection of this air conditioner to the power supply is prohibited. 

1) Power supply connection to the receptacle using a power plug. 

Use an approved 15/16A power plug with earth pin for the connection to the receptacle. 

2) Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for 

the permanent connection. It must be a double pole switch with a minimum 3.5 mm contact gap. 

6. Do not release refrigerant. 

Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. 

Take care of the liquid refrigerant, it may cause frostbite. 

7. Installation or servicing work. 

It may need two people to carry out the installation and service work. 

8. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc. 

9. Do not touch the sharp aluminium fin, sharp parts may cause injury. 

10. Thermal fuse specification for indoor unit: 250V 3.15A T3.15AL; outdoor unit: 205V 3.15A T3.15AL,. 

4

2. Specification 

Model 

Indoor 

Outdoor 





Power Supply 

Phase, Hz 

V 

Single, 50 

230 

Single, 50 

230 

Min Rate Max Min Rate Max 

kW 0.900 2.500 3.000 0.900 3.500 3.900 

Capacity 

BTU/h 3070 8530 10230 3070 11940 13300 

kJ/h 770 2150 2580 770 3010 3350 

Running Current A - 3.30 - - 4.70 - 

Input Power W 190 700 1000 170 1010 1200 

EER 

W/W 

BTU/hW 

4.74 

16.16 

3.57 

12.18 

3.00 

10.23 

5.29 

18.06 

3.47 

11.82 

3.25 

11.08 

Power Factor % 92 93 

Indoor Noise 

dB-A (H / L / QLo) 

Power Level 

Hi: 42 Lo: 27 QLo: 22 

58 

Hi: 42 Lo: 30 QLo: 22 

58 

Outdoor Noise 

dB-A (H / L ) 

Power Level 

Hi: 47 Lo: - 

63 

Hi: 48 Lo: - 

64 

kW 0.900 3.300 4.100 0.900 4.250 5.100 

Capacity 

BTU/h 3070 11250 13980 3070 14490 17390 

kJ/h 770 2840 3530 770 3660 4390 

Running Current A - 3.80 - - 5.20 - 

Input Power W 170 820 1150 150 1120 1460 

COP 

W/W 

BTU/hW 

5.29 

18.06 

4.02 

13.71 

3.57 

12.16 

6.00 

20.47 

3.79 

12.94 

3.49 

11.91 

Power Factor % 93 93 



Power Level 

Hi: 42 Lo: 27 QLo: 25 

58 

Hi: 42 Lo: 33 QLo: 25 

58 


dB-A (H / L ) 

Power Level 

Hi: 48 Lo: - 

64 

Hi: 50 Lo: - 

66 

Max Current (A) / Max Input Power (W) 6.30 / 1.350k 8.40 / 1.600k 

Starting Current (A) 4.00 5.40 

Type Hermetic Motor Hermetic Motor 

Compressor Motor Type BRUSHLESS (6 poles) BRUSHLESS (6 poles) 

Output Power W 750 900 

Type Cross-flow fan Cross-flow fan 

Material AS(GF30%) AS(GF30%) 

Motor Type DC (8 poles) DC (8 poles) 

Input Power W - - 


Q-Lo rpm 600 620 

Speed Lo rpm 700 790 

(COOLING) Me rpm 920 970 

Hi rpm 1150 1150 

Q-Lo rpm 650 680 

Speed Lo rpm 710 830 

(HEATING) Me rpm 830 950 

Hi rpm 1040 1150 

Type Propeller Propeller 

Material PP(GF+PD)30% PP(GF+PD)30% 

Motor Type DC (8 poles) DC (8 poles) 

Input Power W - - 


Speed 

Cooling 

Heating 

rpm 

rpm 

730 

710 

730 

710 

Moisture Removal L/h (Pt/h) 1.4 (2.4) 2.0 (3.5) 

O-Lo m 3 /min (ft 3 /m) 6.51 (230) 6.74 (238) 

Lo m 3 /min (ft 3 /m) 7.60 (268) 8.58 (303) 

Me m 3 /min (ft 3 Indoor Airflow 

(COOLING) 

/m) 10.00(353) 10.54 (372) 

Hi m 3 /min (ft 3 /m) 12.5 (441) 12.5(441) 

Indoor Airflow O-Lo m 3 /min (ft 3 /m) 6.94 (245) 7.39 (261) 

COOLING 

HEATING 

Indoor Fan 

Outdoor Fan 

5

Lo m 3 /min (ft 3 /m) 7.57 (267) 9.01 (318) 

Me m 3 /min (ft 3 (HEATING) 

/m) 8.86 (313) 10.33 (364) 

Hi m 3 /min (ft 3 /m) 11.1 (392) 12.5 (441) 

Hi (Cooling) m 3 /min (ft 3 Outdoor Airflow 

Hi (Heating) 

/m) 

3 3 

m /min (ft /m) 

31.4 (1108) 

31.4 (1108) 

33.0 (1165) 

33.0 (1165) 

Control Device 

Refrigerant Oil cm 

Capillary Tube Capillary Tube 

3 Refrigeration 

Cycle 

Refrigerant Type g (oz) 

FV50S (250) 

R410A, 640 (22.6) 

FV50S (320) 

R410A, 780(27.5) 

Dimension Height(I/D / O/D) mm (inch) 290 (11-15/32) 530 (20-55/64) 290 (11-15/32) 540 (21-1/4) 

Width (I/D / O/D) mm (inch) 848 (33-13/32) 720(28-11/32) 848 (33-13/32) 780 (30-45/64) 

Depth (I/D / O/D) mm (inch) 213(8-3/8) 275 (10-53/64) 213(8-3/8) 289 (11-3/8) 

Weight Net (I/D / O/D) kg (lb) 8.0 (18) 20 (44) 8.0 (18) 26(57) 

Pipe Diameter (Liquid / 

Gas) 

mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8) 

Standard length m (ft) 5 (16.4) 5 (16.4) 

Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 3 (9.8) ~ 15 (49.2) 

I/D & O/D Height different m (ft) 5.0 (16.4) 5.0 (16.4) 

Additional Gas Amount g/m (oz/ft) 20 (0.2) 20 (0.2) 

Length for Additional Gas m (ft) 7 (23.0) 7 (23.0) 

Drain Hose Inner diameter mm 16 16 

Length mm 500 500 

Fin Material 


Fin Type 

Heat 

Row x Stage x FPI 

Exchanger 

Size (W x H x L) mm 

Pre coated 

Slit Fin 

2 x 15 x 19 

610 x 315 x 25.4 

Pre coated 

Slit Fin 

2 x 15 x 19 

610 x 315 x 25.4 

Fin Material 


Fin Type 

Heat 


Exchanger 

Size (W x H x D) mm 

Pre coated 

Slit Fin 

1 x 24 x 19 

661 x 504 x 18.19 

Pre coated 

Slit Fin 

2 x 24 x 17 

703x 504 x 18.19 

Air Filter 

Material 

Type 

P.P.HONEY COMB 

One-touch 


One-touch 

Power Supply Indoor Indoor 

Power Supply Cord A 10A 10A 

Thermostat - - 

Protection Device - - 

Piping 

TEMPERATURE (°C ) 

Indoor Operation Range 

Outdoor Operation Range 

COOLING HEATING COOLING HEATING 

DB WB DB WB DB WB DB WB 

Maximum 32 23 30 - 32 23 30 - 

Minimum 16 11 16 - 16 11 16 - 

Maximum 43 26 24 18 43 26 24 18 

Minimum 16 11 -5 -6 16 11 -5 -6 

1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19°C Wet Bu lb (66.2°F 

Wet Bulb) and outdoor air temperature of 35°C Dry B ulb (95.0°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bu lb). 

2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor ai r temperature 

of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42 .8°F Wet Bulb). 

3. Specifications are subjected to change without prior notice for further improvement. 

6

Model 





Power Supply 

Phase, Hz 

V 

Single, 50 

230 

Min Rate Max 

kW 1.000 4.200 4.600 

Capacity 

BTU/h 3410 14330 15700 

kJ/h 860 3610 3960 

Running Current A - 6.00 - 

Input Power W 210 1260 1650 

EER 

W/W 

BTU/hW 

4.76 

16.23 

3.33 

11.37 

2.78 

9.51 

Power Factor % 91 



Power Level 

Hi: 46 Lo: 31 QLo: 29 

62 


dB-A (H / L) 

Power Level 

Hi: 50 Lo: - 

66 

kW 0.900 5.000 6.800 

Capacity 

BTU/h 3070 17060 23200 

kJ/h 770 4300 5850 

Running Current A - 6.30 - 

Input Power W 210 1385 2280 

COP 

W/W 

BTU/hW 

4.28 

14.61 

3.61 

12.31 

2.98 

10.17 

Power Factor % 95 



Power Level 

Hi: 46 Lo: 34 QLo: 28 

62 


dB-A (H / L) 

Power Level 

Hi: 51 Lo: - 

67 

Max Current (A) / Max Input Power (W) 10.5 / 2.280k 

Starting Current (A) 6.40 

Type Hermetic Motor 

Compressor Motor Type BRUSHLESS (6 poles) 

Output Power W 700 

Type Cross-flow fan 

Material AS(GF30%) 

Motor Type DC (8 poles) 

Input Power W - 


Speed 

(COOLIN 

G) 

O-Lo 

Lo 

Me 

Hi 

rpm 

rpm 

rpm 

rpm 

730 

800 

1040 

1320 

O-Lo 

Speed 

Lo 

(HEATING 

Me 

) 

Hi 

rpm 

rpm 

rpm 

rpm 

740 

900 

1060 

1300 

Type Propeller 

Material PP 

Motor Type DC (8 poles) 

Input Power W - 


Speed 

Cooling 

Heating 

rpm 

Rpm 

750 

750 

Moisture Removal L/h (Pt/h) 2.4 (4.2) 

Q-Lo m 3 /min (ft 3 /m) 8.18 (289) 

Lo m 3 /min (ft 3 /m) 8.97 (317) 


(COOLING) 

/m) 11.65 (412) 

Hi m 3 /min (ft 3 /m) 14.80 (523) 

Q-Lo m 3 /min (ft 3 /m) 8.25 (291) 

Lo m 3 /min (ft 3 /m) 10.03 (354) 


(HEATING) 

/m) 11.82 (417) 

Hi m 3 /min (ft 3 /m) 14.50 (512) 

COOLING 

HEATING 

Indoor Fan 


7

Hi (COOLING) m 3 /min (ft 3 Outdoor Airflow 

Hi (HEATING) 

/m) 

3 3 

m /min (ft /m) 

34.1 (1204) 

34.1 (1204) 

Control Device 

Refrigerant Oil cm 

Expansion valve 

3 Refrigeration 

Cycle 

Refrigerant Type g (oz) 

FV50S (320) 

R410A, 920 (32.4) 

Dimension Height(I/D / O/D) mm (inch) 290 (11-15/32) 540 (21-1/4) 

Width (I/D / O/D) mm (inch) 848(33-13/32) 780 (30-45/64) 

Depth (I/D / O/D) mm (inch) 213 (8-3/8) 289(11-3/8) 

Weight Net (I/D / O/D) kg (lb) 8.0 (18) 27(60) 

Pipe Diameter (Liquid / 

Gas) 

mm (inch) 6.35 (1/4) / 12.7 (1/2) 

Standard length m (ft) 5(16.4) 

Length range (min – max) m (ft) 3 (9.8) ~ 15 (49.2) 

I/D & O/D Height different m (ft) 5.0 (16.4) 

Additional Gas Amount g/m (oz/ft) 20 (0.2) 

Length for Additional Gas m (ft) 7 (23.0) 

Drain Hose Inner diameter mm 16 

Length mm 500 

Fin Material 


Fin Type 

Heat 


Exchanger 

Size (W x H x L) mm 

Pre coated 

Slit Fin 

2 x 15 x 19 

610 x 315 x 25.4 

Fin Material 

Outdoor Fin Type 

Heat Row x Stage x FPI 

Exchanger 

Size (W x H x D) mm 

Pre coated 

Slit Fin 

2 x 24 x 17 

703x 504 x 18.19 

Piping 

Air Filter 

Material 

Type 


One-touch 

Power Supply Indoor 

Power Supply Cord A 16A 

Thermostat - 

Protection Device - 

TEMPERATURE (°C ) 

Indoor Operation Range 

Outdoor Operation Range 

COOLING HEATING 

DRY BULB WET BULB DRY BULB WET BULB 

Maximum 32 23 30 - 

Minimum 16 11 16 - 

Maximum 43 26 24 18 

Minimum 16 11 -5 -6 

1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb), 19°C Wet Bulb (66.2°F Wet 

Bulb) and outdoor air temperature of 35°C Dry Bulb (95.0°F Dry Bulb), 24°C Wet Bulb (75.2°F Wet Bulb). 

2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and outdoor ai r temperature 

of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42 .8°F Wet Bulb). 

3. Specifications are subjected to change without prior notice for further improvement. 

8

3. Features 

• Inverter Technology 

o Wider output power range 

o Energy saving 

o Quick Cooling 

o More precise temperature control 

• Long Installation Piping 

o CS/CU-RE9/12/15NKE, long piping up to 15 meters. 

• Easy to use remote control 

• Quality Improvement 

o Random auto restart after power failure for safety restart operation 

o Gas leakage protection 

o Prevent compressor reverse cycle 

o Inner protector to protect compressor 

• Operation Improvement 

o Quiet mode to reduce the indoor unit operating sound 

o Powerful mode to reach the desired room temperature quickly 

o 12-hour timer 

• Serviceability Improvement 

o Breakdown Self Diagnosis Function. 

• ANTI-BACTERIAL FILTER supplied.. 

9

4. Location of Controls and Components 

4.1 Indoor Unit 

Vertical airflow 

direction louver 

4.2 Outdoor Unit 

Air inlet(side) 

Air Filter 

4.3 Remote Control 

OFF/ON 

Fan speed 

selection 

Receiver 

Horizontal airflow 

direction louver 

Air inlet(rear) 

Air outlet 

� For normal operation, the ERROR RESET button is not in use. 

� Press RESET button to restore the remote control’s default setting. 

10 

Front Panel 

Transmitter 

Timer setting 

INDICATOR 

Temperature setting 

Airflow direction 

adjustment 

POWER GREEN 

TIMER ORANGE 

QUIET GREEN 

POWERFUL RED

5. Dimensions 


11 

Unit:mm



Unit: mm 

CU-RE12NKE, CU-RE15NKE 

12

6. Refrigeration Cycle Diagram 

CS/CU-RE9NKE, CS/CU- RE12NKE, CU/CU-RE15NKE 

13 

COOLING 

HEATING

7. Block Diagram 

CS/CU-RE9NKE 

14 

CS/CU-RE12NKE

15 

CS/CU-RE15NKE

8. Wiring Diagram 


16


17


18

9. Printed Circuit Board 


9.1.1 Main Printed Circuit Board 

TOP VIEW 

BOTTOM VIEW 

19

9.1.2 Indicator & receiver 

TOP VIEW 

BOTTOM VIEW 

20


9.2.1 CU-RE9NKE 

TOP VIEW 

BOTTOM VIEW 

21


TOP VIEW 

BUTTOM VIEW 

22


TOP VIEW 

BUTTOM VIEW 

23

10. Installation Instruction 

10.1 Select the Best Location 

10.1.1 Indoor Unit 

• There should not be any heat source or steam near 

the unit. 

• There should not be any obstacles blocking the air 

circulation. 

• A place where air circulation in the room is good. 

• A place where drainage can be easily done. 

• A place where noise prevention is taken into consideration. 

• Do not install the unit near the door way. 

• Ensure the spaces indicated by arrows from the wall, ceiling, 

fence or other obstacles. 

• Recommended installation height for indoor unit shall be at 

least 2.5m. 

10.1.2 Outdoor Unit 

• If an awning is built over the unit to prevent direct sunlight or 

rain, be careful that heat radiation from the condenser is not 

obstructed. 

• There should not be any animal or plant which could be 

affected by hot air discharged. 

• Keep the spaces indicated by arrows from wall, ceiling, fence 

or other obstacles. 

• Do not place any obstacles which may cause a short circuit of 

the discharged air. 

• If piping length is over the rated length, additional refrigerant 

should be added as shown in the table below: 

Model Piping size Rated Max Min Max Additio- Piping 

Gas Liquid Length Elev- Piping Piping nal length for 

mm mm (m) ation Length Length Refriger add 

(inch) (inch) (m) (m) (m) ant 

(g/m) 

gas(m) 

RE9NKE 9.52 6.35 5 5 3 15 20 7 

(3/8”) (1/4") 


(3/8”) (1/4”) 


(1/2”) (1/4”) 

Example: If the unit is installed at a 10m distance, the quantity of 

additional refrigerant should be 60 g. …… (10-7) m x 20g/m = 60 g 

24 

11.1.3 Indoor/Outdoor Unit 

*This illustration is for explanation purposes only. 

The indoor unit will actually face a different way.


10.2.1 How to Fix Installation Plate 

The mounting wall is strong and solid enough to prevent it from the vibration. 

The centre of installation plate should be at more 

than 450 mm at right and left of the wall. 

The distance from installation plate edge to 

ceiling should more than 175mm. 

From installation plate left edge to unit’s left side 

is 135 mm. 

From installation plate right edge to unit’s right 

side is 165 mm. 

○B : For left side piping, piping connection for liquid should be about 155 mm from this line. 

: For left side piping, piping connection for gas should be about 185 mm from this line. 

1 Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the wall, consider 

using anchor bolts.) Always mount the installation plate horizontally by aligning the marking-off line with 

the thread and using a level gauge. 

2 Drill the piping plate hole with ø70 mm hole-core drill. 

� Put measuring tape at position as shown in the diagram above. The hole centre is 

obtained by measuring the distance namely 115 mm and 120 mm for left and right hole 

respectively. 

� Drill the piping plate hole at either the right or left and the hole should be slightly slanted 

to the outdoor side. 

10.2.2 To Drill a Hole in the Wall and Install a Sleeve of Piping 

1 Insert the piping sleeve to the hole. 

2 Fix the busing to the sleeve. 

3 Cut the sleeve until it extrudes about 15mm from the wall 

Caution 

When the wall is hollow, please be sure to use the sleeve for tube 

ass’y to prevent dangers caused by mice biting the connecting 

cable. 

4 Finish by sealing the sleeve with putty or caulking compound at the 

final stage. 

25 

Wall 

Indoor Outdoor 

Sleeve for 

tube ass’y 

Ø 70 through hole 

15 mm 

Approx. 5 - 7 mm 

Bushing for tube ass’y 

Putty or caulking compound

10.2.3 Indoor Unit Installation 

26

10.2.4 Connect the Cable to the Indoor Unit 

1 The inside and outside connecting cable can be connected without removing the front grille. 

2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x 

1.5mm 2 flexible cords, type designation 245 IEC 57 or heavier cord. 

� Ensure the color of wires of outdoor unit and the terminal numbers are the same to the indoor’s 

respectively. 

� Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety 

in case of the slipping out of the cord from the anchorage. 

� Secure the cable onto the board with the holder (clamper). 

3 Wire stripping and connecting requirement. 


10.3.1 Install the Outdoor Unit 

• After selecting the best location, start installation according to indoor/outdoor unit installation diagram. 

1 Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut (ø10 mm). 

2 When installing at roof, please consider strong wind and earthquake. 

Please fasten the installation stand firmly with bolt or nails. 

Unit: mm 

Model A B C D 

RE9NKE 474 130.4 16.6 307.9 

RE12NKE 570 103.7 13.4 320 

RE15NKE 570 103.7 13.4 320 

10.3.2 Connecting the Piping 

10.3.2.1 Connecting the piping to indoor unit 

Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the copper pipe. (In case of 

using long piping) 

Connect the piping 

• Align the center of piping and sufficiently tighten the flare nut with fingers. 

• Further tighten the flare nut with torque wrench in specified torque as stated in the table. 

Spann 

er 

or 

Wrenc 

h 

Torq 

ue 

wrenc 

h 

Caution : Do not over tighten, over 

tightening cause gas leakage 

Piping size Torque 

6.35mm (1/4”) 18 N• m (1.8kgf•m) 

9.52mm (3/8") 42 N• m (4.2kgf•m) 

12.70mm (1/2") 55 N• m (5.5kgf•m) 

Connecting the piping to outdoor unit 

Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the 

flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to 

the specified torque as stated in the table. 

27

10.3.2.2 Cutting and flaring the piping 

1 Please cut using pipe cutter and then remove the burrs. 

2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused. Turn the piping 

end down to avoid the metal powder entering the pipe. 

3 Please make flare after inserting the flare nut onto the copper pipes. 

10.3.3 Evacuation of the equipment 

When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the follwing 

procidure. 

1 Connect a charging hose with a push pin to the low side of a charging set and the service port at the 3-way 

valve. 

� Be sure to connect the end of charging hose with the push pin to the service port. 

� The size of charging hose fitting should be 1/2 UNF, 20 threads. 

2 Connect the center hose of the charging set to a vacuum pump with check valve, or vacuum pump and 

vacuum pump adaptor. 

3 Turn on the power switch of the vacuum pump and make sure that the needle in the gauge moves from 0 

cmHg (0 Mpa) to –76 cmHg (-0.1 Mpa). Then evacuate the air approximately ten minutes. 

4 Close the Low side valve of the charging set and turn off the vacuum pump. Make sure that the needle in the 

gauge does not move after approximately five minutes. 

Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGEANT GAS LEAKAG 

5 Disconnect the charging horse from the vacuum pump and from the service port of the 3-way valve. 

6 Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque wrench. 

7 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” 

using a hexagonal wrench (4mm). 

8 Mount valve caps onto the 2-way and the 3-way valve. 

� Be sure to check for gas leakage. 

CAUTION: 

● If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3 above take the following 

measure: 

● If the leak stops when the piping connections are tightened further, continue working from step 3. 

● If the leak does not stop when the connections are retightened, repair the location of leak. 

● Do not release refrigerant during piping work for installation and reinstallation. Take care of the liquid refrigerant, 

it may cause frostbite. 

28

10.3.4 Connect the cable to the Outdoor Unit 

1 Remove the control board cover from the unit by loosening the screw. 

2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4x 

1.5mm 2 flexible cords, type designation 245 IEC 57 or heavier cord. 

3 Secure the cable onto the control board with the holder (clamper). 

4 Attach the control board cover back to the original position with the screw. 

5 For wiring stripping and connection requirement, refer to instruction 10.2.4 of indoor unit. 

10.3.5 Pipe Insulation 

1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation 

Diagram. Please warp the insulated piping end to prevent water from going inside the piping. 

2 If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by 

using POLY-E-FOAM with thickness 6mm or above. 

29

11. Service Mode 

11.1 Auto OFF/ON Button 

Auto OFF/ON 

Button Pressed 

1. AUTO OPERATION MODE 

Once the Auto OFF/ON button is slightly pressed, the unit will immediately operate in Auto operation. This 

operation can be used to operate air conditioner with limited function if remote control is misplaced or 

malfunction. 

2. TEST RUN OPERATION( FOR PUMP DOWN/ SERVICING PURPOSE) 

Press the button continuously for approximate 5 second and then release. A “beep” sound will be heard to 

identify the starting of TEST RUN OPERATION. 

3. HEATING OPERATION 

A) Within 5 minutes after TEST RUN operation starting, press the button again for more than 5 seconds until 2 

“beep” sounds are heard, the unit will operate in heating mode. 

B) Pressed the button continuously for approximate 8 second and then released. 2 “beep” sounds will be 

heard to identify the starting of HEATING operation. 

4. DIFFERENT CONTROLLING SETTING. 

Press the button continuously for approximate 11 until 3 “beep” sounds are heard and together with the signal 

from remote controller, the unit can be changed to different controlling setting. 

For transmission code selection method, please refer to “Select Remote Control Transmission Code” 

5. INDIVIDUAL COUNTER-ACTION 

When the switch is continuously pressed between 16 to 21 seconds, either H14 error detection selection mode or 

remote controller’s signal receiving sound can be cancelled or turned on. 

11.2 Select Remote Control Transmission Code 

� There are 4 types of remote control transmission code could be selected and stored in EEPROM of indoor PCB. 

The indoor unit will only operate when received signal with same transmission code from remote control. This 

could prevent signal interference when there are 2 or more indoor units installed near by together. 

� To Change the code of remote controller, following table I to join or cut jumper wire on the remote controller and 

setting with "Forced operation button". Four codes (A, B, C, D) can be selected. Taking code "B" for example, 

the process below should be follow. 

1. Press the "Auto OFF/ON” button on the indoor unit for approximate 11 seconds until 3 "Beep’s signal receiving 

sounds are heard. 

2. Within 5 minutes, gently press the "ERROR RESET" button on the remote control towards the indoor unit. 

One "Beep" sound is heard. 

3. Within 60 seconds, press any button on the remote control, the frequency of which was set as "B". Setting is 

completed after a "Beep" sound is heard. The corresponding signal sent by remote control "B" will be received 

by this indoor unit. 

Table 1 

Remote control J2 J3 

A(STANDARD) SHORT OPEN 

B OPEN OPEN 

C SHORT SHORT 

D OPEN SHORT 

30

11.3 Operate and Display of Remote Control 

11.3.1 Original setting 

11.3.2 Mode selecting button 

AUTO, HEAT, COOL, DRY can be selected by pressing “MODE” button. Initial display of LCD is as follow 

*Keeping the button depressed continuously, the operation mode will change in the following order in turn 

AUTO—HEAT—COOL—DRY--AUTO 

11.3.3 Temperature adjusting button 

Temperature adjusting range is between 16 ℃~30 ℃ 

11.3.4 Fan speed button 

There are 5 speed levels can be selected. The display on the remote controller changes as follows by pressing the AIR SWING 

button. 

11.3.5 AIR SWING button 

To adjust vertical airflow directions by pressing AIR SWING button (5 options) 

11.3.6 QUIET AND POWERFULL button 

Start Quiet operation: Press QUIET button until “QUIET” displaying on remote control display to identify Quiet mode 

operating. 

Start POWERFUL operation: Press POWERFUL button until “POWERUL” displays on remote control display to 

identify Powerful mode operating. 

Switch Quiet/Powerful operation to normal operation: Press QUIET or POWERFUL button until “QUIET” or 

“POWERFUL” on remote control display disappear, which identifies the unit returns to normal operation. 

Note: QUIET and POWERFUL operation can not be active simultaneously. 

31

11.3.7 Timer setting button 

There are 4 types of timer setting by pressing Timer setting button: ON-TIMER, OFF-TIMER, ON-OFF TIMER, OFF- 

ON TIMER. 

1) SELECT button 

� When the air conditioner is ON, OFF-TIMER or OFF-ON TIMER can be selected by pressing SELECT 

button. 

� When the air conditioner is turned off, ON-TIMER or ON-OFF-TIMER can be selected. 

2) Button A and B 

Pressing button A can change the time for ON-TIMER and OFF-TIMER, off time for OFF-ON Timer, on time for 

ON-OFF TIMER; Pressing button B can change the on time for OFF-ON Timer and off time for ON-OFF Timer setting. 

3) SET/CANCEL button. 

Pressing the button to set or cancel the set timer during the timer setting or activate the previous timer setting. After the 

timer setting is determined, “ON” or “OFF” will stop flashing. If the timer setting is cancelled, “ON” or “OFF” will disappear 

on the remote control display. 

NOTE: 

� OFF Timer and OFF- ON Timer can only be set during the operation; 

� Timer setting can operate only once. 

� If the OFF/ON button on the remote control or the AUTO Switch on the indoor unit is pressed, the timer setting 

will be cancelled. 

� If Auto Restart Control occurs, timer setting will be cancelled. 

� During the operation, if the ON Timer or ON-OFF Timer is set, the operation will be stopped. 

11.3.8 About Cursor Key Which Points To “OFF” On Remote Control 

When the ON/OFF button on the remote control is pressed, the cursor key which points to “OFF” will appear or disappear to 

indicate the ON/OFF status of the air conditioner. 

PRESS “OFF/ON” 

BUTTONSS 

For some reason (Ex. The signal of the remote control does not reach the signal receiver of the indoor unit.), the display of the 

remote control will not correspond with the actual ON/OFF status of the indoor unit: 

1. The air conditioner is running but the cursor key which points to “OFF” appears. The air conditioner can be stopped with 

any button (Except for “ON/OFF”, “TIMER A”,”TIMER B”,”SELECT”) pressed. 

2. The air conditioner is on standby, but the cursor key which points to “OFF” disappears. The air conditioner can be started 

with any button (Except for “ON/OFF”, “TIMER A”,”TIMER B”,”SELECT”) pressed. 

32

12. Operation Control 

12.1 Basic Function 

12.1.1 Internal Setting Temperature 

Once the operation starts, remote control setting temperature will be taken as base value for temperature shifting 

processes. These shifting processes are depending on the air conditioner settings and the operation environment. 

The final shifted value will be used as internal setting temperature and it is updated continuously whenever the 

electrical power is supplied to the unit. 

12.1.2 Cooling Operation 

12.1.2.1 Thermostat control 

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5℃ 

• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature > 

Compressor OFF point. 

12.1.3 Soft Dry Operation 

12.1.3.1 Thermostat control (The same as Cooling mode) 

12.1.4 Heating operation 

12.1.4.1 Thermostat control 

• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0℃ 

• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting Temperature< 

Compressor OFF point. 

12.1.5 Automatic Operation 

• Once AUTO mode is selected, operation mode is determined by set temperature of remote control and indoor 

intake temperature. 

1st judgment 

JUDGE CONDITION REFERANCE MODE 

If indoor intake temp – Remote control 

temp setting ≥ +2 

Remote Control Setting Temp. (16℃~30℃) 

Auto operation Mode Shifting 

If -2 ≤ indoor intake temp. – Remote 

control Temp. setting ≤ +2 

If indoor intake temp. – Remote control 

temp. setting < -2 

Setting Temperature Limit Checking( Min:16 ℃; Max.:30℃) 

Outdoor Air Temperature Shifting 

Setting Temperature Limit Checking( Min:16 ℃; Max.:33℃) 

Internal Setting Temperature 

Cool mode 

Dry mode 

Heat mode 

33

2nd & following judgment (every 15 minutes after 1st judgment) 

JUDGE CONDITION REFERANCE MODE 

If indoor intake temp – Remote control temp 

setting ≥ +3 

If -2 ≤ indoor intake temp. – Remote control 

Temp. setting < +3 

If indoor intake temp. – Remote control 

temp. setting < -2 

12.2 Indoor Fan Motor Operation 

34 

� Cool mode if previously is Cool / 

Heat mode 

� Dry mode if previously is Dry mode 

Maintain current mode 

Heat mode 

Basic Rotation Speed 

i. Manual Fan speed 

Fan motor’s number of rotation is determined according to remote control setting. 

Model 

Remote control 

Tab 

O 

Hi 

O 

Me+ 

O 

Me 

O 

Me- 

O 

Lo 

QUIET 

QLo 


COOLING(rpm) 

HEATING(rpm) 

1150 

1040 

1030 

890 

920 

830 

810 

770 

700 

710 

600 

650 


COOLING(rpm) 

HEATING(rpm) 

1150 

1150 

1060 

1010 

970 

950 

880 

890 

790 

830 

620 

680 


COOLING(rpm) 

HEATING(rpm) 

1320 

1300 

1160 

1140 

1040 

1060 

920 

980 

800 

900 

730 

740 

ii. Auto Fan Speed (Cooling, Soft Dry Mode) 

According to room temperature and setting temperature, indoor fan speed is determined automatically. 

The indoor fan will operate according to pattern below. 

Fan speed 

Higher 

Medium 

Lower 

Intake temp.- setting temp. 

Intake temp.- setting temp. 

A b c d e f g h a b 

B. Feedback control 

• Immediately after the fan motor started, feedback control is performed once every second. 

• During fan motor on, if fan motor feedback 2550 rpm or < 50 rpm continue for 10 seconds, then fan motor error 

counter increases, fan motor then stops and restarts. If the fan motor counter becomes 7 times, then H19 - fan motor 

error is detected. Operation stops and cannot on back. 

12.3 Outdoor Fan Motor Operation 

HEAT 

Outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30 

seconds after compressor stops operation. 

DRY 

COOL 

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 

HEAT 

MAINTAIN 

CURRENT MODE 

COOL/DRY 

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

Compressor 


ON 

ON 

30 s 

12.3.1 Vertical Airflow 

Cooling 

Soft dry 

Heating 

Operating Mode 

Auto 

Auto 

Manual 

Auto 

Manual 

Manual 

OFF 

OFF 

ON 

1. Automatic vertical airflow direction can be set using remote control; the vane swings up and down within the angles as stated 

above. For heating mode operation, the angle of the vane depends on the indoor heat exchanger temperature. When the air 

conditioner is stopped using remote control, the vane will shift to close position. 

2. Manual vertical airflow direction can be set using remote control. The angels of the vane are as stated above. When the air 

conditioner is stopped using remote control, the vane will shift to close position. 

* Above angle data is for reference only. 

12.3.2 Horizontal Airflow 

The horizontal airflow direction louvers can be adjusted manually by hand. 

12.3.3 Quiet operation 

● To provide quiet operation comparing to normal operation. The Quiet operation can be active or stop by pressing 

QUIET button on remote control. 

● Once Quiet mode is active ,the unit will continuously operate in QUIET Mode until cancel the mode by pressing 

QUIET button on remote control. 

12.3.4 Powerful operation 

● To cooling or heating the room faster comparing to normal operation. The POWERFUL operation can be active or 

stop by pressing POWERFUL button on remote control. 

● When powerful operation is active, the unit will continuously operate in POWERFUL mode until cancel the mode 

by pressing POWERFUL button on remote control. Operation details are as the fig. below. 

1. For cooling, soft Dry mode 

Normal 

Powerful 

Normal 

Powerful 

1 2 3 4 5 

10° 21° 31° 

10°-50° 

40° 50° 

35°(Beginning of POWERFUL mode) 6° 

10° 21° 31° 40° 50° 

Normal 7° 22° 35° 50° 60° 

Powerful 31° 40° 48° 58° 68° 

Normal 

8° 36° 7° 

Powerful 

8° 45°(Beginning of POWERFUL mode) 33° 7° 

35 

12° 

12°

PIPING 

TEMP. 

(COOLING) 

FAN SPEED 

( rpm) 

Correction 

Factor( ℃ ) 

OFF 

2. For Heating mode: 

PIPING 

TEMP TEMP. 

(COOLING) 

(HEATING) 

FAN SPEED 

( rpm) 

Correction 

Factor( ℃ ) 

Power Button pressed 

Min.5’ 

D 

C 

B 

A 

Fast Cooling Cooling, Soft Dry 

Shi 

-1.00 

-1.67 

Power Button pressed 

Min.5’ 

D 

C 

B 

A 

Shi 

ON 

1130 (Max) 

45 seconds 

20 ‘ 

20 ‘ 

Fast Heating1 Heating 

+1.00 

+2 

1270 (Max) 

45 seconds 

20 ‘ 

-0.25 

36 

730 (Min.) 

ON 

OFF 

Note: The value of A, B, C, D will change according to the indoor temperature. 

12.3.5 Automatic Restart Control 

20 ‘ 

940 (Min.) 

20 ‘ 

20 ‘ +0.25 20 ‘ 

20 ‘ 

+0.25 

+0.25 

AUTO 

AUTO 

When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to 

four minutes after power supply resumes. 

12.3.6 Indication Panel 

LED POWER TIMER QUIET POWERFUL 

Color Green Orange GREEN RED 

Light ON Operation ON Timer setting ON Quiet mode ON Powerful mode ON 

Light OFF Operation OFF Timer setting OFF Quiet mode OFF Powerful mode OFF 

Note: 

● If POWER LED blinks, the possible operation of the unit is operating mode judgment, or ON timer 

sampling. 

● If Timer LED blinks, there is an abnormal operation occurs. 

12.3.7 Timer control 

Delay ON Timer can be set using remote controller, the unit with timer set will start operate earlier than the setting 

time. This is to provide a comfortable environment when reaching the set On time. Seventy minutes before the set 

time for ON Timer or ON-OFF Timer setting, indoor ( at fan speed of Lo-) and outdoor fan motor start operate for 30 

seconds to determine the indoor intake air temperature and outdoor air temperature in order to judge the operation

mode. From the above judgment, the decided operation will start operate earlier than the set time as shown below. 

Timer Signal Receiving sound During Operation. 

Timer Signal Receiving Sound When the Air Conditioner Stops. 

13. Protection control 

13.1 Protection Control For All Operations 

13.1.1 Time Delay Safety Control 

● The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on 

again by pressing OFF/ON button at remote control within this period. 

● This control is not applicable if the power supply is cut off and on again. 

● This phenomenon is to balance the pressure inside the refrigerant cycle. 

13.1.2 30 Seconds Forced Control 

● Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a normal operation 

although the intake air temperature has reached the thermo-off temperature. However, force stop by pressing the 

OFF/ON button at the remote control is permitted or the Auto OFF/ON button at indoor unit. 

● The reason for the compressor to force operation for minimum 30 seconds is to allow the refrigerant oil run in a 

full cycle and return back to the outdoor unit. 

13.1.3 Total running current control 

1. If the outdoor unit total running current is detected exceeding I1(A), the frequency instructed for compressor 

operation will be decreased. 

2. If the running current does not exceed I1(A) for 5 seconds, the frequency instructed will be increased. 

Operation mode 

RE9NKE 

I1(A) 


I1(A) 


I1(A) 

Cooling/ Soft Dry /Fan A* 6.02 6.90 7.49 

Cooling/ Soft Dry /Fan B 5.88 6.90 7.36 

Cooling/Soft Dry/ Fan C 5.03 6.90 6.9 

Heating 5.04 6.88 8.48 

*The first 30 minutes of cooling operation, A will be applied. 

37

13.1.4 IPM (Power transistor) Protection Control. 

1. DC Peak Current Control 

● When electric current to IPM exceeds set value of 7A(for RE9NKE),15.7A(for RE12NKE), or 19.3A(for 

RE15NKE) the compressor will stop. It will restart after three minutes. 

● If the set value is exceeded again within 30 seconds, the operation will restart after one minute. 

● If this condition repeats continuously for seven times, all indoor and outdoor relays will be cut off. 

● Error code [F99] will be displayed. 

2. Overheating protection control 

When the IPM temperature rises to 120 ℃ , compressor will stop immediately. 

Compressor restarts after three minutes if the temperature decreases to 110℃ 

13.1.5 Compressor Overheating Prevention Control 

Instructed frequency for compressor operation will be regulated compressor discharge temperature. The change of 

frequency is as below. 

RE9NKE RE12/15NKE 

13.1.6 Low Operation Frequency Protection Control 

● When the compressor operate frequency lower than 24Hz continued for 240 minutes, the operation frequency will 

be changed to 23Hz for 2 minutes. 

13.1.7 Low Operation Frequency Protection Control 

If all following conditions exists, the compressor will run with the frequency of 30 Hz. 

Models RE9NKE, RE12NKE,RE15NKE 

Intake Air Temp. ≥30 ℃ or

Indoor piping temperature - indoor suction is under 5℃. 

Indoor temperature and outdoor temperature is 20 ± 2℃. 

Remote control setting 30℃ and Hi Fan Speed. 

b. Control contents 

• Compressor stops (and restart after 3 minutes) 

• If the conditions above happen 2 times within 20 minutes, the unit will: 

- Stop operation 

- Timer LED blinks and “F91” indicated 

13.2 Protection Control For Cooling and Soft Dry Operation 

13.2.1 Outdoor Air Temperature Control 

• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the 

diagram below. 

• This control will begin 1 minute after the compressor starts. 

• Compressor frequency will adjust base on outdoor air temperature. 

Outdoor air temp.( ℃) Outdoor air temp.( ℃) 

Outdoor air temp.( ℃) 

RE9NKE RE12NKE RE15NKE 

13.2.2 Freeze Prevention Control 

1 .Frequency of the compressor 

For prevention of freezing of the indoor evaporator, the frequency of the compressor will be changed according to 

the indoor piping temperature. 

2 .Indoor Fan Control 

Indoor fan speed changes according to the indoor piping temperature. 

13.2.3 Dew Prevention Control 

• To prevent dew formation at indoor unit discharge area. 

• This control starts if all conditions continue for 20 minutes: 

- Operated with Cooling or Soft Dry Mode. 

- Outdoor air temperature is less than 34℃. 

• This control stopped if anyone of the following conditions is achieved: 

- Outdoor air temperature is over 34℃. 

- Intake air temperature is less than 24℃. 

- Operation without Cooling or Soft Dry Mode. 

39

13.2.4 Overload Protection For Cooling Operation 

The frequency for the compressor will change according to the outdoor piping temperature. 

13.3 Indoor Piping Air Temperature Control (Heating) 

13.3.1 Indoor Fan Control 

1. Indoor fan is controlled by the indoor piping temperature. 

● Manual Fan Speed 

Piping Temperature(℃) 

K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 K10 K11 

16 19 24 32 32 36 36 39 54 54 57 60 

● Auto Fan Speed 

2. During heating operation, the indoor fan will run at the following speed when the compressor stops. 

1 2 3 4 5 6 7 8 

Comp. 

ON 

OFF 

Fan speed 

(rpm) 

Outdoor pipe Temp. 

Control 

by piping 

temp. 

+15rpm/s 

Fixed 

K8 

K7 

K6 

RE9NKE 550 440 550 440 550 440 



Time 

_ 

20 100 20 100 20 100 

(Second) 

3. Hot Start 

When the heating operation starts, the indoor fan stops and the compressor runs with a certain frequency. 

This is to prevent the cold airflow from blowing. 

If the piping temperature rises to 19 ℃, and the indoor fan speed varies with the indoor piping temperature, the hot 

start control is stopped. 

40

13.3.2 Overload Protection Control 

The frequency for the compressor is determined by indoor piping temperature. 

Indoor piping temp. 

Indoor piping temp. Indoor piping temp. 

RE9NKE RE12NKE RE15NKE 

41

14. Troubleshooting Guide 

14.1 Refrigeration cycle system 

In order to diagnose malfunctions, make sure that there are no 

electrical problems before inspecting the refrigeration cycle. Such 

problems include insufficient insulation, problem with the power 

source, malfunction of a compressor and a fan. The normal outlet 

air temperature and pressure of the refrigeration cycle depends on 

various conditions, the standard values for them are shown in the 

table on the right. 

14.1.1 

Different in the intake 

and outlet 

air temperatures 

Value of electric current 

during operation 

Gas side 

pressure 

More than 8°C 

(15 minutes after an operation 

is started) at cooling mode. 

Above 14°C (15 minutes after 

an operation is started.) at 

heating mode 

Less than 8°C at the cooling mode 

Less than 14°C at the heating mode 

Lower than 

specified 

Higher than specified 

Cooling 

Mode 

Heating 

Mode 

High 

Low 

Low 

Low 

Low 

Low 

42 

Normal 

Dusty condenser 

preventing heat radiation 

Excessive amount 

of refrigerant 

Inefficient compressor 

Insufficient refrigerant 

Clogged strainer or 

capillary cube 

Inefficient compressor 


Clogged strainer or 

capillary cube 

Normal Pressure and Outlet Air Temperature (Standard) 

Gas Pressure 

Mpa 

(kg/cm 2 G) 

Outlet air 

Temperature 

(°C) 

Cooling Mode 0.9~1.2 ( 9~12) 12~16 

Heating Mode 2.3 ~2.9 (23~29) 36~45 

Condition: Indoor fan speed = High 

Outdoor temperature = 35°C at cooling mode and 7° C at 

heating mode. 

Compressor operates at rated frequency 

• Measuring the air 

temperature different 

• Measuring electric 

current during operation 

• Measuring gas side 

pressure

14.1.2 Relationship between the condition of the air conditioner and pressure and electric 

current 

Condition of the 

air conditioner Low Pressure 

Insufficient 

refrigerant 

(gas leakage) 

Clogged capillary 

tube or 

strainer 

Short circuit in the 

indoor unit 

Heat radiation 

deficiency 

of the outdoor unit 

Inefficient 

compression 

Cooling Mode Heating Mode 

High 

Pressure 

Electric current 

during 

operation 

43 

Low Pressure 

High 

Pressure 

� � � � � � 

� � � � � � 

� � � � � � 

� � � � � � 

� � � � � � 

Electric current 

during operation 

• Carry out the measurement of pressure, electric current, and temperature fifteen minutes after an operation is 

started. 

14.2 Breakdown Self Diagnosis Function 

14.2.1 About Self Diagnosis 

When the air-conditioner is stopped due to malfunction detected by itself, the operation can be restarted using AUTO 

Switch on the indoor unit. In forced operation, the frequency for compressor and fan speed can not be changed and 

the signal receiving sound is different. 

Normal Operation ON: “pep” 

Forced Operation ON: “pep”, “pep”, “pep”, “pep” 

Stop: “pep” 

Note: Refer to the Diagnosis Code Table for the malfunction when forced operation is not available. 

14.2.2 Display of Error Code 

1. Keeping the CHECK button on the remote controller depressed for 5 seconds, error code ranging fromH11 to H99 

can be displayed on the remote controller. 

2. The error code is changed and diagnosis signal is transmitted to the indoor unit by pressing the Temp Up button 

on the remote control. 

3. When the malfunction of the air-conditioner matches the error code on the remote control, four beeps can be heard 

from the indoor unit and the operation indicator will light up. 

4. Keep the CHECK button depressed continuously for 5 seconds to cancel the diagnosis function.

14.2.3 Error Codes Table 

Code Abnormality/Protection Judgment Check 

H00 Normal 

H11 

H14 

H15 

H16 

H19 

H23 

H27 

H28 

H30 

Indoor/Outdoor abnormal 

communication 

Indoor intake air temp sensor 

abnormality 

>1 minute after starting 

operation 

Outdoor compressor 

Continue for 5 sec. 

tempearture sensor abnormality 

Outdoor Current Transformer 

open circuit 

Indoor fan motor mechanism 

lock 

Indoor heat exchanger 

temperature A sensor 

abnormality 

Outdoor air temperature sensor 

abnormality 

- 

44 

Connecting cable, 

Indoor/outdoor PCB 

Intake air temperature 

sensor(defected or 

disconnected) 

Compressor tempeature 


disconnected) 

Emergency 

Operation 

- Outdoor PCB, IPM module × 

- Indoor PCB, fan motor × 



Outdoor heat exchanger 


temperature sensor abnormality 

Discharge temperature sensor 

abnormality 


Heat exchanger 

temperature 


disconnected) 

Outdoor temperature 


disconnected) 

Outdoor heat exchanger 

sensor(defected 

disconnected) 

Discharge temperature 


disconnected) 

Indoor/outdoor supply 

voltage 

H33 

Incorrect connection of 

Indoor/Outdoor cable 

- 

× 

H97 Outdoor fan motor lock Twice within 30 minutes Outdoor fan motor × 

H98 Indoor high pressure protection - 

Air filter dirty 

Air circulation short circuit 

- 

H99 

Indoor heat exchanger antifreezing 

protection 

Indoor heat exchanger 

freezing 


Air filter dirty 

- 

F11 

Cooling/Heating cycle 

changeover abnormality 

4 times occurrence 

within 30 minutes 

4-way valve 

V-coil 

× 

F90 PFC control 



Voltage at PFC × 

F91 Refrigeration cycle abnormality 



No refrigerant(3-way valve is 

closed) 

× 

F93 Compressor abnormality 



Compressor × 

F95 Cool high pressure protection 



Outdoor refrigeration cycle 

Excessive refrigerant 

× 

F96 IPM overheating protection - 

Improper heat radiation 

IPM 

× 

F97 

Outdoor compressor 

overheating protection 




Compressor 

× 

F98 


Total running current protection 


Excess refrigerant 

Improper radiation 

× 

F99 

Outdoor Peak Current 

Protection Control 

4 times occurrcnce 

continuously within 30 

minutes 

Outdoor PCB 

IPM 

Compressor 

× 

○ 

× 

× 

○ 

○ 

○ 

×

15. Disassembly and Assembly Instructions 

WARNING 

High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged 

sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 

Removal Procedure for Intake Grille 

1. Open the intake grille and pull it to the horizontal position. 

2. Pull up the intake grille until it falls off. 

Removal Procedure for Front Grille 

1. Remove the two caps at the discharge port (right and left) and then release the two screws on both sides. 

Cap 

2. Pull out the front grille form the unit body. 

Front grille 

45 

Screw

Removal Procedure for Main Electronic Controller 

1. After front grille is taking off, remove the cover of control board and holder, then the Main PCB can be seen. 

3. Drag out the supporting hook to the right side and pull up a bit the main PCB. Then release the lead wire 

connecting to CN-FM, CN-STM3, earth wire (Yellow/Green) on main PCB, take out the sensor from the holder on 

evaporator, release the CN1 connector on indicator PCB, pull out the whole electronic controller. Be sure to avoid 

cracking of the supporting hook. 

CN-FM: Fan motor connector 

Control board cover 

Supporting 

Hook 

Holder 

4. Remove the control board complete 

Loose the screws of control board complete, then the whole control board can be pulled out. 

Removal Procedure for Main Electronic Controller 

Indicator & receiver 

Auto OFF/ON 

switch CN-STM3: Air swing motor connector 

1. Separate the drain hose and the drain plate. 2. Pull out the discharge grille slightly. 

46 

CN-TH: Sensor connector 

CN1: Indicator connector 

Main PCB

Removal Procedure for Cross Flow Fan 

1. Release fixing screws on both side, disassembly the fixing board from evaporator on the left side and pull out the 

whole evaporator. 

Fixing board 

2. Loose the fixing screw of the cross flow fan. 

Fixing Screw 

3. After removing the bearing, indoor fan can be taken out from the left side 

4. Lift up the indoor fan slightly, and then pull the fan motor out. 

Bearing 

47 

Fan motor

16. Exploded View and Replacement Pars List 


CS-RE9NKE, CS-RE12NKE, CS-RE15NKE 

48

NO. PART NAME QTY. CS-RE9NKE CS-RE12NKE CS-RE15NKE REMARK 

1 CHASSIS COMPLETE 1 CWD50C1644 CWD50C1644 CWD50C1738 

2 FAN MOTOR(DC,280-340V,30W) 1 ARW7648AC ARW7648AC ARW7648AC 

3 CROSS FLOW FAN COMPLETE 1 CWH02C1095 CWH02C1095 CWH02C1095 

4 BEARING ASS'Y 1 CWH64K1008 CWH64K1008 CWH64K1008 

5 EVAPORATOR 1 CWB30C3981 CWB30C3977 CWB30C3978 

6 AUXILIARY TUBE ASS'Y 1 CWT01C5455 CWT01C5455 CWT01C5456 

7 DRAIN PLUG 1 CWH521096 CWH521096 CWH521096 

8 DISCHARGE GRILLE COMPLETE 1 CWE20C3276 CWE20C3276 CWE20C3276 

9 

AIR SWING 

MOTOR(DC,12V,200OHM) 

1 CWA981292 CWA981292 CWA981292 

10 HORIZONTAL AIR FLOW VANE (L) 1 CWE24C1292 CWE24C1292 CWE24C1292 

11 HORIZONTAL AIR FLOW VANE (R) 1 CWE24C1291 CWE24C1291 CWE24C1291 

12 VERTICAL AIR FLOW VANE 1 CWE24C1413 CWE24C1413 CWE24C1413 

13 CONTROL BOX COMPLETE 1 CWH14C9275 CWH14C9276 CWH14C9279 

14 CONTROL BOARD CASING 1 CWH102487 CWH102487 CWH102487 

15 PARTICULAR PIECE 1 CWD933089 CWD933089 CWD933089 

16 TERMINAL BOARD COMPLETE 1 CWA28C2546 CWA28C2547 CWA28C2546 

17 

POWER SUPPLY CORD 

COMPLETE 

1 CWA20C3068 CWA20C3068 CWA20C3074 

18 MAIN PCB 1 CWA73C5921 CWA73C5922 CWA73C5923 

19 SENSOR 1 CWA50C2883 CWA50C2883 CWA50C2883 

20 INDICATOR HOLDER 1 CWD933546 CWD933546 CWD933546 

21 INDICATOR PCB 1 CWA746860 CWA746860 CWA746860 

22 CONTROL BOARD TOP COVER 1 CWH131523 CWH131523 CWH131523 

23 CONTROL BOARD BACK COVER 1 CWH131526 CWH131526 CWH131526 

24 REMOTE CONTROL 1 CWA75C3755 CWA75C3755 CWA75C3755 

25 FRONT GRILLE COMPLETE 1 CWE11C5307 CWE11C5307 CWE11C5307 

26 INTAKE GRILLE 1 CWE22K1594 CWE22K1594 CWE22K1594 

27 GRILLE DOOR 1 CWE14C1092 CWE14C1092 CWE14C1092 

28 AIR FILTER 2 CWD001339 CWD001339 CWD001339 

29 ANTI-BACTERIAL FILTER 1 CWD001280 CWD001280 CWD001280 

30 SCREW-FRONT GRILLE 2 XTT4+16CFJ XTT4+16CFJ XTT4+16CFJ 

31 CAP-FRONT GRILLE 2 CWH521236A CWH521236A CWH521236A 

32 DRAIN HOSE 1 CWH851136 CWH851136 CWH851136 

33 OPERATING INSTRUTIONS 1 CWF568363 CWF568363 CWF568363 

34 INSTALLATION INSTRUCTION 1 CWF615218 CWF615218 CWF615218 



37 

(Note) 

INSTALLATION PLATE 1 CWH361133 CWH361133 CWH361133 

• All parts are supplied from PAPAGZ, China 

49



50

NO. PART NAME QTY. CU-RE9NKE REMARK 

1 CHASSIS ASS'Y 1 CWD52K1299A 

2 FAN MOTOR BRACKET 1 CWD541177 

3 SCREW-FAN MOTOR BRACKET 2 CWH551148A 

4 FAN MOTOR(AC,220-230V,20W) 1 CWA951842 

5 SCREW-FAN MOTOR MOUNT 4 CWH551148A 

6 PROPELLER FAN ASS'Y 1 CWH03K1069 

7 NUT-PROPELLER FAN 1 CWH561036J 

8 COMPRESSOR 1 CWB092606 

9 ANTI-VIBRATION BUSHING 3 CWH501022 

10 NUT-COMPRESSOR MOUNT 3 CWH561047A 

11 CONDENSER 1 CWB32C3238 

12 HOLDER COUPLING ASS'Y 1 CWH351191A 

13 4-WAY VALVE 1 CWB001063 



16 STRAINER 1 CWB111026 

17 TERMINAL COVER 1 CWH171041 

18 SOUND PROOF BOARD 1 CWH15K1048 

19 SOUND PROOF MATERIAL 1 CWG302731 

20 SOUND PROOF MATERIAL 1 CWG302732 

21 TUBE (NOISE SUPPRESSOR) 1 CWB141023 

22 REACTOR 1 G0C193J00014 

23 CONTROL BOX COMPLETE 1 CWH14C9273 

24 TERMINAL BOARD ASS'Y 1 CWA28K1248 

25 SENSOR COMPLETE(COMP.) 1 CWA50C2848 

26 SENSOR COMPLETE(PIPING) 1 CWA50C2835 

27 TUBE ASS'Y(CAPILLARY) 1 CWT01C6046 

28 V-COIL COMPLETE 1 CWA43C2356 

29 TOP PLATE 1 CWE03K1052A 

30 CABINET FRONT PLATE 1 CWE06C1386 

31 CABINET SIDE PLATE (R) 1 CWE04C1371 

32 CABINET SIDE PLATE (L) 1 CWE04K1155A 

33 CONTROL BOARD COVER 1 CWH131544A 

34 DISCHARGE GRILLE 1 CWE201207 

35 DRAIN ELBOW 1 CWT201212 

36 SCREW-TOP PLATE 2 CWH551295 

(Note) 

All parts are supplied from PAPAGZ, China 

51

CU-RE12NKE,CU-RE15NKE 

52

NO. PART NAME QTY. CU-RE12NKE CU-RE15NKE REMARK 

1 CHASSIS ASS'Y 1 CWD52K1303A CWD52K1303A 

2 FAN MOTOR BRACKET 1 CWD541146 CWD541146 

3 

SCREW-FAN MOTOR 

BRACKET 

2 CWH551148A CWH551148A 

FAN MOTOR(AC,230,40W) 1 CWA951766 - 

4 FAN MOTOR(DC,280- 

340V,40W) 

1 - L6CAYYYL0018 

5 SCREW-FAN MOTOR MOUNT 4 CWH551148A CWH551148A 

6 PROPELLER FAN ASS'Y 1 CWH03K1059 CWH03K1064 

7 NUT-PROPELLER FAN 1 CWH561036J CWH561034J 

8 COMPRESSOR 1 CWB092605 CWB092574 

9 ANTI-VIBRATION BUSHING 3 CWH501022 CWH501022 

10 NUT-COMPRESSOR MOUNT 3 CWH561047A CWH561047A 

11 CONDENSER 1 CWB32C3511A CWB32C3529A 

12 HOLDER COUPLING ASS'Y 1 CWH351191A CWH351191A 

13 4-WAY VALVE 1 CWB001063 CWB001063 



16 STRAINER 1 CWB111026 CWB111026 

17 TERMINAL COVER 1 CWH171048 CWH171048 

18 SOUND PROOF BOARD 1 CWH15K1034 CWH15K1034 

19 SOUND PROOF MATERIAL 1 CWG302703 CWG302609 

20 SOUND PROOF MATERIAL 1 CWG302605 CWG302605 

21 SOUND PROOF MATERIAL 1 CWG302693 - 

22 TUBE (NOISE SUPPRESSOR) 1 CWB141023 CWB141023 

23 REACTOR 1 G0C103J00034 G0C193J00011 

24 CONTROL BOX COMPLETE 1 CWH14C9612 CWH14C9270 

25 TERMINAL BOARD ASS'Y 1 CWA28K1248 CWA28K1248 

26 SENSOR COMPLETE(COMP.) 1 CWA50C2834 CWA50C2897 

27 SENSOR COMPLETE(PIPING) 1 CWA50C2882 CWA50C2766 

28 TUBE ASS'Y(CAPILLARY) 1 CWT01C6071 CWT01C6092 

29 V-COIL COMPLETE 1 CWA43C2472 CWA43C2472 

30 TOP PLATE 1 CWE03K1040A CWE03K1040A 

31 CABINET FRONT PLATE 1 CWE06C1337 CWE06C1337 

32 CABINET SIDE PLATE (R) 1 CWE04C1261 CWE04C1261 

33 HANDLE 1 CWE16037C CWE16037C 

34 CONTROL BOARD COVER 1 CWH131544A CWH131544A 

35 DISCHARGE GRILLE 1 CWE201195 CWE201195 

36 DRAIN ELBOW 1 CWT201212 CWT201212 

37 SCREW-TOP PLATE 2 CWH551295 CWH551295 

(Note) 

• All parts are supplied from PAPAGZ, China. 

53 

Printed in China

Indoor Unit Outdoor Unit CS-RE9NKE CS-RE12NKE CS-RE15NKE ...

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